mineral

Iron-stained jasper (likely rough jasper)

Jasper, an opaque microcrystalline variety of quartz (SiO₂), colored by iron oxides

AI-generated identification · may be incorrect

Opaque ochre-orange to brown, dull to slightly waxy surface, with subtle dark markings; quartz has Mohs hardness 7 and trigonal crystal structure, though jasper shows no visible crystals or cleavage. The wet appearance and surrounding objects make precise identification uncertain.

Identified September 26, 2026More mineral →

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Physical properties

Formation & geological history

Forms when silica-rich fluids or sediments become silicified, with iron oxides producing the coloration; deposits occur in many ages and settings worldwide.

Uses & applications

Used as an ornamental and lapidary stone for cabochons, beads, carvings, and polished specimens; this piece appears rough and unpolished.

Geological facts

Jasper is a chalcedony-rich rock, rather than a single distinct mineral species, and its colors commonly reflect iron-bearing impurities.

Field identification & locations

Look for opaque, fine-grained material that scratches glass and lacks cleavage; common sources include Brazil, India, Australia, and the western United States. A small rough fragment typically sells for about $1–$15, depending on pattern and quality.